cljrs 0.1.249

clojurust CLI — run, repl, compile, and eval
Documentation 
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//! `cljrs build-native` — build the project's own `:rust` crate as a shared
//! library, the one `cljrs run` and `cljrs repl` load at startup.

use miette::IntoDiagnostic as _;

use crate::native;

#[derive(clap::Args)]
pub struct Args {
    /// Build in release mode instead of debug.
    #[arg(long)]
    pub release: bool,
}

/// Build the native Rust crate declared in `cljrs.edn` as a shared library.
pub fn run(args: Args) -> miette::Result<i32> {
    let release = args.release;
    let cwd = std::env::current_dir().into_diagnostic()?;
    let config = cljrs_project::config::load_config(&cwd)
        .into_diagnostic()?
        .ok_or_else(|| miette::miette!("no cljrs.edn found in or above the current directory"))?;

    let rust_config = config
        .rust
        .as_ref()
        .ok_or_else(|| miette::miette!("no :rust key found in cljrs.edn"))?;

    let crate_name = rust_config
        .crate_name()
        .ok_or_else(|| miette::miette!(":rust has no :init function; cannot derive crate name"))?;

    eprintln!(
        "[build-native] building {} in {}",
        crate_name,
        rust_config.crate_dir.display()
    );

    let mut cmd = std::process::Command::new("cargo");
    cmd.arg("build");
    if release {
        cmd.arg("--release");
    }
    cmd.current_dir(&rust_config.crate_dir);

    let status = cmd.status().into_diagnostic()?;
    if !status.success() {
        return Err(miette::miette!("cargo build failed"));
    }

    let lib_path = native::native_lib_path(&rust_config.crate_dir, crate_name, release);
    eprintln!("[build-native] built {}", lib_path.display());
    println!("{}", lib_path.display());

    Ok(0)
}